VORTEX-VT Vortex Flowmeter VORTEX-VT 10VT1000 / 10VR1000 ... Vortex Flowmeter VORTEX-VT 10VT1000

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  • Vortex FlowmeterVORTEX-VT10VT1000 / 10VR1000EEx 10VT1000, EEx 10VR1000Valid for Software Levels 50VT1000D699B151U01 B.10 and higher


    D184B087U02 Rev. 00 / 12.2000Instruction Bulletin

  • You have purchased a high quality, modern instrument fromBailey-Fischer & Porter. We thank you for your purchase

    and the confidence you have shown in us..

    The information contained herein includes instructions for the assembly and installation and the specifications for the instrument.

    Bailey-Fischer & Porter reserves the right to make hardware and software refinements which may not be reflected in this

    manual without prior notice. Any questions which may arise that are not specifically answered by these instructions should

    be directed to Bailey-Fischer & Porter at out main plant in Gttingen, Germany or to one of our

    Technical Sales Bureaus for further detailed information and technical instructions

    Copyright by Bailey-Fischer & Porter. All Rights Reserved

  • Introductory Safety Notes

    Specified UsageThe Vortex Flowmeters are to be installed only in the specified applications.

    Every usage which exceeds the specifications is considered to be non-specified. Any damages resulting therefrom are not the responsibility of the manufacturer. The risk is borne by the user alone.

    The application specifications include the installation, start-up and service requirements specified by the manufacturer.

    Installation, Start-Up and Operating PersonnelPlease read this Instruction Manual and the safety notes before attempting installation, start-up or operation.

    Only qualified personnel should have access to the instrument.The personnel should be familiar with the warnings and operating requirements contained in this Instruction Manual.

    Assure that the connections are in accordance with the Interconnection Diagrams. Ground the flowmeter system.

    Observe the warning notes in this documentindicated by the symbol:

    Hazardous Material InformationIn view of the requirements of the Disposal Ordinance of 27.08.86 (AbfG. 11 Special Wastes) which states that the possessor of the special waste is responsible for its care and the employer, according to the Hazardous Waste Ordinance of 01.10.86 (GefStoffV, 17 General Protection Responsibility)also has the responsibility to protect his employees, we must make note that

    a) all flowmeter primaries and/or flowmeter converters which are returned to Bailey-Fischer & Porter forrepair are to be free of any hazardous materials (acids, base, solutions, etc.).

    b) the flowmeter primaries must be flushed so that the hazardous materials are neutralized together withany other areas which may be contaminated by the hazardous materials (see Hazardous Material Ordinance - GefStoffV).

    c) for service and repair written conformation is required that the measures listed in a) and b) above havebeen carried out.

    d) costs which may arise for the decontamination of hazardous materials during repair will be invoiced tothe owner of the equipment.

  • Contents Page

    1. Operating Principles 1

    2. Assembly and Installation Flowmeter Primary 2

    2.1 Checking 2

    2.2 Flowmeter Primary in the Pipeline 2

    2.2.1 Installation requirements 2

    2.2.2 Recommended In- and Outlet Sections 2

    2.2.3 Installation for High Fluid Temperatures > 150C 3

    2.2.4 Installation of control valve location 3

    2.2.5 Centering the Wafer Design 3

    3. Converter Start-Up 4

    3.1 Sensor Connections 4

    3.2 Preamplifier Settings 4

    4 Electrical Connections VORTEX-VT 5

    4.1 Interconnection Examples 5

    4.2 Pulse Transmission 5

    4.3 Communication, HART-Protocol 6

    5. Data Entry/Operation and Configuration 7

    5.1 LC-Display 7

    5.2 Data Entry 7

    5.3 Parameter Overview and Data Entry 9

    6. Configuring the Converter at Start-Up 12

    7. Additional Configuration Information 12

    7.1 Meter Size 12

    7.2 Calibration k-Factor 13

    7.3 Current Output 13

    7.4 Submenu Pulse Output 13

    7.5 Submenu Error Register 14

    7.5.1 Error Register 14

    7.5.2 Mains Interrupt 14

    7.6 Normal Factor 14

    8. VORTEX-VR 15

    9. Specifications 10VT1000/10VR1000 16

    9.1 Electrical Connections 10VT1000 17

    10. Certificate of Compliance 18

    Specifications see SP 1.4-02 Part No. D184027U02

    Dimensions see SP 1.4-02 Part No. D184027U02

    Ordering Information see SP 1.4-02 Part No. D184027U02

  • 1

    Vortex Flowmeter - VORTEXFlowmeter Primary

    1. Principle of OperationThe operation of the VORTEX flowmeter is based on the Karman Vortex Street. As the flow passes the shedder vorticesare formed alternately on both sides of the shedder. The flowcauses these vortices to shed forming a vortex street (KarmanVortex Street) (Fig. 1).

    The Frequency f of vortex shedding is proportional to the flow velocity v and indirectly proportional to the width of the shedder d:

    St, the Strouhal-Number, is a dimensionless number which defines the quality of the vortex flowrate measurements.

    The St value is constant over wide Reynolds Number Re ranges for properly designed shedders. (Fig. 2).

    = Kinematic viscosity

    D = Meter size

    The vortex shedding frequency which is measured is a function of the flow velocity alone and is independent of the fluid density and viscosity.

    The local pressure variations resulting from the vortex forma-tion are measured by a Piezo-Sensor and converted into electrical impulses corresponding to the vortex shedding frequency.The flowrate calculated from these values is available as a current output signal (4 - 20 mA).

    Bluff body Piezzo-Sensor

    Fig.1 Karman Vortex Street

    f Stvd---=

    Rev D


    Linearer Durchflussbereich




    l St

    Reynolds-Zahl Re

    Linear Flow range



    l num



    Reynolds number Re

    Fig.2 Relationship Strouhal-No. vs. Reynolds-No.

  • 2

    Vortex Flowmeter - VORTEXFlowmeter Primary

    2. Assembly and InstallationFlowmeter Primary

    2.1 Checking

    Before installing the VORTEX flowmeter check for mechanical damage due to improper handling during shipment. All claims for damages are to made promptly to the shipper prior to installation.

    2.2 Installing the Flowmeter Primary in the Pipeline

    2.2.1 Installation Requirements The VORTEX flowmeter can be installed at any location in the pipeline. Care should be taken to assure that

    the ambient requirements are maintained(see Specification Sheet D184S027U02).

    the recommended in- and outlet sections are utilized (Fig. 3).

    the flow direction corresponds to the arrow on the flowmeter primary.

    the required minimum space for removal of the preamplifier and for exchanging sensors is available (see Specification Sheet D184S027U02, Fig. 18/19).

    mechanical vibrations are eliminated by appropriate supports if necessary.

    the inside diameter of the flowmeter primary and the pipeline are the same (see Spec. Sht. Fig. 19/20).

    Pressure fluctuations in long pipelines at zero flow resulting from intermediate valve operations are to be avoided.

    pulsating flow from piston pumps or compressors must be reduced by appropriate means.

    the flowmeter primary must always be full when metering liquids.

    the flowmeter primary must be installed with the electronic components located on the side or towards the bottom of the pipeline the fluid temperatures are high (Fig. 4).

    2.2.2 Recommended In- and Outlet Sections

    15 x D 5 x D

    15 x D 5 x D

    40 x D 5 x D

    25 x D 5 x D

    50 x D 5 x D

    18 x D 5 x D

    20 x D 5 x D

    Fig.3 Recommended In- and Outlet Sections

  • 3

    Vortex Flowmeter - VORTEXFlowmeter Primary

    2.2.3 Installation for High Fluid Temperatures>150 C

    2.2.4 Installation of control valve locations

    2.2.5 Centering the Wafer DesignThe centering of Wafer Design is accomplished by utilizing the outside diameter of the body of the flowmeter primary and the mounting bolts. Centering sleeves or segments are included as accessories with the shipment whose dimensions are a func-tion of the pressure rating of the flowmeter (up to DN 80 [3]).

    Fig.4 Installation for High Fluid Temperatures >150 C

    Fluid Temperature [C]



    t Tem





    Allowable temperature rangeVORTEX-VR

    Allowable temperature rangeVORTEX-VT

    Fig.5 Relationship Ambient Temperature-Fluid Temperature-

    15 x D 5 x D

    Fig.6 Installation of control valve location



    Centering Ring

    Fig.7 Wafer Design Centering with Rings or Segments.


    The relationship between the fluid and ambient temperatures must be considered as indicated in Fig. 4.

  • 4

    Vortex Flowmeter - VORTEX-VTConverter

    3. Converter Start-Up

    3.1 Sensor Connections

    The Piezo sensor is connected to terminals 19, 1B and 2B on the analog board. The connections are made as follows:

    19 = red (signal)1B = blue (common)2B = yellow (compensation)

    3.2 Preamplifier Settings

    The matching of the input circuit (preamplifier) to the fluid being metered and to the meter size is made using the switches on the analog board.The switch settings are usually set at the factory according to the ordering information. If all the necessary information was not available or if changes have occurred, the switches are to be set in accordance with the specifications in the Settings Tables (lower portion of Fig. 8). Ple